The JBX42146 SC/APC to SC/UPC duplex fiber patch cable represents a premium solution for demanding telecommunications and data center applications. This 75-meter cable delivers enterprise-level performance with meticulous attention to optical specifications and build quality. **Technical Excellence:** Constructed with 9/125 single mode fiber core featuring G.657.A1 glass specifications, this cable achieves outstanding optical performance. Insertion loss measurements of ≤0.35dB at standard wavelengths (0.25 dB/km @ 1310nm or 0.35 dB/km @ 1550nm) ensure minimal signal degradation over the cable run. Return loss ≥20dB provides superior signal integrity for critical network applications. **Professional Build Quality:** The yellow OFNR (Optical Fiber Non-conductive Riser) jacket provides fire safety ratings suitable for vertical cable runs in buildings. The compact 1.8mm outside diameter allows for efficient cable management without sacrificing durability. Duplex configuration with Type A to B crossover polarity represents the industry standard for patch cord applications. **Compliance & Standards:** TAA compliant for government and institutional procurement. RoHS/ELV certified, meeting EU Directive 2002/95/EC environmental standards. Performance tested in accordance with ANSI/TIA/EIA-455-171-A standards, ensuring consistency and reliability. **Ideal Applications:** Perfect for data centers, telecommunications networks, enterprise installations, and high-speed fiber-to-the-premises (FTTP) deployments. The SC/APC to SC/UPC combination accommodates mixed-connector environments while maintaining optimal signal quality. **Custom Solutions:** Available in custom lengths for specific project requirements. Manufactured in multiple locations (Taiwan, US, China) ensuring reliable supply chain and competitive pricing. **Warranty & Support:** Includes 90-day limited warranty. Free standard shipping on orders exceeding $99. Ships from multiple US locations (California, Texas, South Carolina) for faster delivery.